Siding & Exterior Trim

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The right siding sets the tone for a project—delivering both protection and curb appeal. Osborne Lumber offers a full range of siding options to meet the needs of builders across the Bay Area, from natural wood to engineered solutions.

Western Red Cedar & Redwood Patterns – Classic choices with natural warmth, durability, and timeless beauty. Available in a variety of profiles and grades to suit any design.
Knotty Pine – Offered in 1x6 Tongue & Groove and 1x8 V-Rustic profiles, this option brings a warm, rustic character that’s perfect for exterior overhangs, ceilings, interiors, and projects where natural woodgrain makes a statement.
Pre-Primed Finger-Jointed Patterns – Including Advantage Plus, Bodyguard, and WindsorONE. These products provide straight, stable boards with a smooth primed finish that’s ready for paint—ideal for a crisp, uniform look.
T1-11 Plywood Siding – A classic choice for utility buildings, sheds, and homes where a natural wood texture is desired.
Breckenridge – Premium T1-11 panel siding with an Okoume veneer face for a refined, consistent appearance.
Hardel – Okoume-faced resawn panels that balance durability with a clean finish, well-suited for exterior cladding.

Whether you’re building a custom home or refreshing an existing structure, Osborne Lumber supplies siding solutions that combine quality, performance, and style.

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James Hardie® Fiber Cement Siding

James Hardie is the industry leader in fiber cement siding—trusted by builders and homeowners alike for its durability, low maintenance, and design flexibility. Engineered to withstand the elements, Hardie siding resists rot, warping, pests, and fire, making it an ideal choice for Bay Area homes.

Available in a wide range of styles, textures, and factory-applied finishes, James Hardie siding offers the look of natural wood with the strength of fiber cement. Whether you’re after timeless lap siding, contemporary panels, or authentic shingle designs, Hardie delivers lasting curb appeal backed by one of the best warranties in the industry.

Osborne Lumber is proud to supply James Hardie products, providing contractors with reliable solutions that combine performance, beauty, and peace of mind.

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TruWood® & LP® SmartSide® Engineered Wood Siding

Engineered wood siding products like TruWood and LP SmartSide combine the natural look of wood with advanced manufacturing for long-lasting performance. Designed for strength, durability, and versatility, these products are treated to resist rot, termites, and harsh weather conditions—making them an excellent alternative to traditional wood siding.

TruWood – Known for its consistent surface, workability, and wide range of patterns. A cost-effective option that delivers classic wood aesthetics with engineered performance.

LP SmartSide – Backed by LP’s SmartGuard® process, SmartSide offers exceptional durability with a smooth or cedar-textured finish. Available in lap, panel, and trim options to fit any style.

Osborne Lumber supplies TruWood and LP SmartSide so builders can achieve the warmth of wood with the strength of engineered innovation—ideal for projects that demand both beauty and reliability.

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The right trim completes the look of any exterior — providing crisp lines, architectural detail, and long-lasting protection. Osborne Lumber offers a wide range of exterior trim products to suit every style and performance need:

Kelleher Advantage Plus – A contractor favorite, this pre-primed finger-jointed trim is straight, stable, and is treated with a LOSP preservative for resistance to rot and termites.
Classic Primed FJ Fascia & Trim – Reliable, cost-effective boards that deliver a smooth primed surface and consistent quality for exterior finishing.
Natural Wood Trim, Corbels, Knee Braces – Available in S4S or resawn textures, offering the warmth and authenticity of real wood with the option for custom sizing and design options.
Fiber Cement Trim (James Hardie) – Engineered for durability, weather resistance, and low maintenance — ideal for long-lasting performance in tough conditions.
Engineered Wood Trim (LP SmartSide & TruWood) – Combines the look of real wood with advanced manufacturing for strength, stability, and resistance to rot and termites.

PROPOSITION 65 WARNING: Drilling, sawing, sanding, or machining wood products generates wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. California Health and Safety Code Section 25249.6. For more information go to www.P65Warnings.ca.gov/wood.

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Siding & Exterior Trim